AL17051

AL17051 ULTRA-LOW STANDBY POWER HV BUCK CONVERTER ADVANCED INFORMATION Description The DIODES™ AL17051 is a universal AC high voltage input step down converter that provides accurate 3.3V or 5V output and outstanding dynamic performance and load regulation without requiring an optocoupler over line and load regulation. Typical applications are power supplies for offline low power IoT (Internet of Things) devices that support WPAN (Wireless Personal Area Network) connectivity. To support Always-On requirements of IoT connectivity, the AL17051 features ultra-low standby operation power of 10mW. It also features high conversion efficiency 60% from rectified mains voltage to 3.3V or 5V for 50mA output and 50% at 10mA light loading during IoT system in idle and sleep mode. With high-degree integration of the embedded 700V High-Voltage MOS switches, the AL17051 is designed to reduce external components and minimize e-BOM (Bill-Of-Material) with small form factor package and PCB space. The AL17051 has rich protection features to enhance the system safety and reliability. It has Over Temperature Protection, VCC Under Voltage Lock Out function, Over Current Protection, and Over Load Protection. Pin Assignments (Top View) VCC 1 SOURCE 2 SOURCE 3 SOT25 Applications  Home appliance applications  IoT applications  Industrial controls  Low standby power applications 5 DRAIN 4 SOURCE The AL17051 is available in the SOT25 package. Features  Integrated MOSFET up to 700V  Fixed Opt...